An introduction to the study of protozoa,
by the late Doris L. Mackinnon and R. S. J. Hawes.
APA Citation
Mackinnon, D. L. (Doris Livingston)., Hawes, R. S. J. (1961). An introduction to the study of protozoa. Oxford: Clarendon Press.
MLA Citation
Mackinnon, Doris L. (Doris Livingston), and R. S. J Hawes. An Introduction to the Study of Protozoa. Oxford: Clarendon Press, 1961.
Warning: These citations may not always be complete (especially for serials).